Trane CVGF500 - Input Options (ECWS, ECLS)

External Chilled Water Setpoint (ECWS)
The External Chilled Water Setpoint allows the chilled water setpoint to be changed
from a remote location. The External Chilled Water Setpoint is found on 1A16 J2-2 to
J2-3 (ground). 2-10 Vdc and 4-20 mA correspond to a 0 to 65°F (-17.8 to 18.3°C) CWS
range.
External Current Limit Setpoint
The External Current Limit is an option that allows the current limit setpoint to be
changed from a remote location. The External Limit Setpoint is found on 1A16 J2-5
to J2-6 (ground), 2-10 Vdc and 4-20 mA each correspond to a 40 to 120 percent RLA
range. AdaptiView limits the maximum ECLS to 100 percent.
Module Characteristics
1A1, 1A2, Power Supply :
Unit Control Power Supply Module Converts 27 Vac to 24 Vdc.
Power Input Voltage: 23VRMS minimum, 27VRMS Nominal, 30VRMS maximum
Frequency: 50-60 Hz
Current: Full load 27 Vac – 4.30 A (RMS)
Inrush 27 Vac (RMS) ~ 30A (RMS)
Power Output: Class II Voltage 24 Vdc, Rated Current 2.44 Amps.
1A4, 1A6, Dual high Voltage Binary input module:
Binary Input Signal #1 J2-1 to 2 Binary Input Signal #2 J3-1 to 2 High Voltage Binary
Input: Off
Voltage: 0 to 40 Vac RMS , On
Voltage: 70 to 276 Vac RMS
Input is not polarity sensitive (Hot and neutral can be switched), Input impedance 130K
to 280K ohms
14-26 AWG with a maximum of two 14 AWG
Power, 24 +/- 10 percent Vdc, 20 mA maximum. Trane IPC3 protocol. J1-1 +24Vdc, J1-2
Ground, J1-3 COMM +, J1-4 COMM-
1A5, 1A8, 1A9 Quad Relay Output Status:
Relay #1 J2-1 NO, J2-2 NC, J2-3 common
Relay #2 J2-4 NO, J2-5 NC, J2-6 common
Relay #3 J2-7 NO, J2-8 NC, J2-9 common
Relay #4 J2-10 NO, J2-11 NC, J2-12 common
Relay Outputs: at 120 Vac: 7.2 Amps resistive, 2.88 Amps pilot duty, 1/3 HP, 7.2 FLA, at
240 Vac: 5 Amps general purpose 14-26 AWG, two 14 AWG Maximum Power, 24 ±10
percent Vdc, 100 mA maximum. Trane IPC3 protocol.
1A13, 1A18, 1A19, 1A24 Dual Binary input module:
J2-1 Binary Input Signal #1, J2-2 Ground, J2-3 Binary Input Signal #2, J2-4 Ground Bi-
nary Input: Looks for a dry contact closure. Low Voltage 24V 12 mA.
14 - 26 AWG with a maximum of two 14 AWG Power, 24 +/- 10 percent Vdc, 40 mA
maximum Trane IPC3 protocol.
1A14 Communication interface Module Power, 24 ± 10 percent Vdc, 50 mA maximum.
Trane IPC3 protocol.
CVGF-SVX03B-EN
97
Control System Components